Car DRL project

[fellsteruk]

Hi all,

First post so go easy on me I am planning on converting some normal reflectors in my car to have LEDs in them which will run from my side lights. That in itself i have a plan for however i also wanted to install orange LEDs next to the white ones so they could also work as indicators.

Expected behaviour of the white/orange LEDs in the reflector would be:

Sidelights ON = White LEDs ON - Orange LED OFF
Sidelights OFF Indicators ON = White LEDs OFF - Orange LED On

Bit I need help with: Lets say i am driving with my sidelights on and i need to turn so flick my indicators on, i would expect the white LEDs to go off and Orange come on then flick back.

Sidelights ON Indicators ON = White LEDs OFF - Orange LED On

I am guessing i need some sort of circuit to achieve this, why advice would you give me?

Thanks